Nozzle.



E. K. HAND.

NOZZLE.

APPLIUAJMUN rum MAY ze, m13.

Patented Feb. 10, 1914,

EDGAR K. HAND, F CHICAGO, ILLINOIS.

NOZZLE.

Specification of Letters Patent.

Patented Feb. 10, 1914,

Application tiled May 28, 1913. Serial No. 776,405.

T0 all 'whom it may concern.'

Be it known that I, EDGAR K. HAND, a citizen of the United States, residiii at. Chicago, in the county of Cook and lbtate of Illinois, have invented certain new and 0 charging useful Improvements in Nozzles, of which the following is a specilicatio'n.

This invention relates to nozzles, and par ticularly to nozzles for combinin and dsconiminuted solids and itpids, or to use either separately, with or wit out the use of compressed air.

The object of the invention is t0 improve nozzles used for the purposes indicated.

W'hen grit-ty materials are discharged, considerable wear takes place at the discharge outlet and I therefore provide a detachable end piece which can be easily replaced. p

Comminuted solids, such as plaster or the like, when delivered from a nozzle `must he saturated with water at a point'close to the place of deposit, to obtain practical results, for instance in sprajving a wall with li uid plaster or mortar, and 1 therefore provi e a nozzle having:r a jacket for the liquid, having :in internal outlet. into the main bore of the nozzle, with pipe or other connections for supplying the solid material and the liquid. l

ln mixing nozzles of the type referred to sprays have been produced by forcing liquid through one or more openings in the side of the inizzle, and tapered openings have also been used, all of which have been found to be. luulty. l provide la spiral slot leading troni a jacket into the bore of the nozzle, and this :slot provides means for wetting the exterior .surface of any comminuted solid 0r mixture that. maliv be passing through the nozzle, the slot producing a blade like stream 0f liquid which will thoroughly saturate said nuileriul, the liquid entering the bore of the nozzle around the whole circumference thereof and being directed toward the axis of the nozzleA The slotted aperture is less liable to become stopped or choked, since drilled apertures are easily stopped up and the spacing thereof will not permit or produce a continuous circular flow of liquid into the body of material passing through they nozzle.

A nozzle constructed according to my invention illustrated in the accompanying drawings in whichu Figure l. is u side elevation of the same.

Fig. 2 is a front end view. Fig. 3 is a'section on the line 3-3 of Fi 2. Fig. 4 is a detail of the removable en piece. Figs. 5 und 6 are details in Aside and end View of the inner wall of the jacket having the curved or spiral slot.

Referring specifically to the drawings, l0 indicates the rear end piece ormeinber of the nozzle, threaded at each end, the end 1l being designed for the attachmentof a pipe or conduit for the coniminuted solid or granuler material, and the opposite end l2 is screwed into the annular liquid jacket 13, which at one side has a connection l5 for a water pipe i4 through which liquid is ap-, plied to the inner annular chamber 16 of the jacket, the inner wall of the chamber being 'formed by tubular sections 17 and 18 which are spaced apart to produce a continuons spiral or curved slot 19 therebe0 tunen, said tube sections being confined in the jacket between the rear piece l0 and the front piece 2l which is screwed into the front end of the jacket.

The front end of the member 2l is recessed to receive :i removable tubular end piece J2 which is held in place by a locknut. 23 screwed on the end of the member 2l, with a ifi-ange, engaging an external shoulder 25 on the e. l piece. l

The bore of the rear member l0 is somewhat smaller than that of the inner wall sections` l? and ld of the jacket, which permits the material being forced through the nozzle to expand and loosen as it passes through said sections. whereby the water forced through the Aelot l) is enabled to more freely enter the material, thereby obtaining n more complete und thorough saturation; und the here of the members Q1 and 22 tapers fro-in a diameter equal to that of the member lh to a smaller diameteri at the mouth. This tapered bore producesy a choking etfert on the material. after it is saturated, :ind forces the particles close together. thereby obtaining greater density, which in certain ruses is desirable for practical resuit-s.

The coniinnuted solids or the like are forced through the main bore under pressure, and the liquid supplied through the pipe lt io the annular chamber 16 escapes in a continuons sheet through the curved groove i9 land penetrates and saturates the materiel. forming a plastic or semifiuid composition which is discharged through the end piece. The end piece can be renewed as often asit wears out.

What l claim as new is:

A mixing nozzle provided with annular fluid-supply chamber extending around the Same, the inner wall of the chamber `having a continuous slot connecting said chamber and the bore and extending around the latter.

2. A mixing nozzle provided with a jacket extending around the same and forming an annular liquid-supply chamber, the inner wall of the chamber having a slot extendin around the same and opening from said chamber into the bore of the nozzle, the said bore being enlarged within said chamber, to permit expansion of material passing through said bore.

3. A mixing nozzle vcomprising tubular inlet and outlet members, an intermediate jacket member therebetween, and inner tubular sections within said jacket member, forming an annular fluid-supply chamber therein, the said sections being spaced apart to form a slot connecting saidchamber'and the inner bore.

4. A mixing nozzle comprising tubular inlet and outlet members, an intermediate jacket member therebetween, and inner tubular sections within said jacket member, forming an annular fluid-supply chamber therein, the said sections being spaced apart to form a slot connecting said chamber and the inner bore, the internal diameter of said sections being greater than that of the inlet member.

In testimony whereof, I afix my signature in presence of two witnesses.

EDGAR K. HAND.

Witnesses:

D. D. LUcUs, HENRY S. MooN.` 

